diff options
| author |   Stephen Boyd <sboyd@codeaurora.org> | 2013-08-20 23:48:02 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-27 16:22:58 -0700 |
| commit | bfaddb7d13ffd5db0180f0121447e2ca4ce3020e (patch) | |
| tree | 592a2eaf46749fc2f41f1d2c0d3baaf2cd46fee0 /drivers/tty/serial/msm_serial.c | |
| parent | tty: serial: vt8500: drop uart_port->lock before calling tty_flip_buffer_push() (diff) | |
| download | linux-dev-bfaddb7d13ffd5db0180f0121447e2ca4ce3020e.tar.xz linux-dev-bfaddb7d13ffd5db0180f0121447e2ca4ce3020e.zip | |
msm_serial: Switch clock consumer strings and simplify code
In downstream kernel we've standardized the clock consumer names
that MSM device drivers use. Replace the uart specific clock
names in this driver with the more standard 'core' and 'iface'
names. Also simplify the code by assuming that clk_prepare_enable
and clk_disable_unprepare() will properly check for NULL pointers
(it will because MSM uses the common clock framework).
Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/msm_serial.c')
| -rw-r--r-- | drivers/tty/serial/msm_serial.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index cc44ef485a2a..67894354dc2a 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -422,8 +422,7 @@ static void msm_init_clock(struct uart_port *port) struct msm_port *msm_port = UART_TO_MSM(port); clk_prepare_enable(msm_port->clk); - if (!IS_ERR(msm_port->pclk)) - clk_prepare_enable(msm_port->pclk); + clk_prepare_enable(msm_port->pclk); msm_serial_set_mnd_regs(port); } @@ -701,13 +700,11 @@ static void msm_power(struct uart_port *port, unsigned int state, switch (state) { case 0: clk_prepare_enable(msm_port->clk); - if (!IS_ERR(msm_port->pclk)) - clk_prepare_enable(msm_port->pclk); + clk_prepare_enable(msm_port->pclk); break; case 3: clk_disable_unprepare(msm_port->clk); - if (!IS_ERR(msm_port->pclk)) - clk_disable_unprepare(msm_port->pclk); + clk_disable_unprepare(msm_port->pclk); break; default: printk(KERN_ERR "msm_serial: Unknown PM state %d\n", state); @@ -895,18 +892,12 @@ static int __init msm_serial_probe(struct platform_device *pdev) else msm_port->is_uartdm = 0; - if (msm_port->is_uartdm) { - msm_port->clk = devm_clk_get(&pdev->dev, "gsbi_uart_clk"); - msm_port->pclk = devm_clk_get(&pdev->dev, "gsbi_pclk"); - } else { - msm_port->clk = devm_clk_get(&pdev->dev, "uart_clk"); - msm_port->pclk = ERR_PTR(-ENOENT); - } - + msm_port->clk = devm_clk_get(&pdev->dev, "core"); if (IS_ERR(msm_port->clk)) return PTR_ERR(msm_port->clk); if (msm_port->is_uartdm) { + msm_port->pclk = devm_clk_get(&pdev->dev, "iface"); if (IS_ERR(msm_port->pclk)) return PTR_ERR(msm_port->pclk); |